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30839093 = 293741701
BaseRepresentation
bin111010110100…
…1000100110101
32011000210021122
41311221010311
530343322333
63020553325
7523061615
oct165510465
964023248
1030839093
111645395a
12a3b2845
136509bac
14414aa45
152a92798
hex1d69135

30839093 has 16 divisors (see below), whose sum is σ = 33611760. Its totient is φ = 28224000.

The previous prime is 30839089. The next prime is 30839119. The reversal of 30839093 is 39093803.

It can be written as a sum of positive squares in 8 ways, for example, as 786769 + 30052324 = 887^2 + 5482^2 .

It is a cyclic number.

It is not a de Polignac number, because 30839093 - 22 = 30839089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30839023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43643 + ... + 44343.

It is an arithmetic number, because the mean of its divisors is an integer number (2100735).

Almost surely, 230839093 is an apocalyptic number.

It is an amenable number.

30839093 is a deficient number, since it is larger than the sum of its proper divisors (2772667).

30839093 is a wasteful number, since it uses less digits than its factorization.

30839093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 30839093 is about 5553.2956881477. The cubic root of 30839093 is about 313.5936058595.

The spelling of 30839093 in words is "thirty million, eight hundred thirty-nine thousand, ninety-three".

Divisors: 1 29 37 41 701 1073 1189 1517 20329 25937 28741 43993 752173 833489 1063417 30839093